Araujo, R., I. Gómez & A. Machordom. 2005. The identity and biology of Unio mancus Lamarck, 1819 (= U. elongatulus) (Bivalvia: Unionidae) in the Iberian Peninsula. Journal of Molluscan Studies 71: 25-31. Available electronically.
+ Unio elongatula C. Pfeiffer, 1825
+ Unio penchinatianus Bourguignat, 1865
+ Unio valentinus Rossmässler, 1854
+ Unio lawleyianus Gentiluomo, 1868
+ Unio glaucinus Porro, 1838